Product category: Power Supply ICs and Controllers
News Release from: Linear Technology Corp | Subject: LTC4011
Edited by the Electronicstalk Editorial Team on 07 October 2005
Battery charger needs no programming
The LTC4011 is a complete NiMH/NiCd battery charger solution with no microcontroller or firmware programming required.
Available now from Linear Technology, the LTC4011 is a complete NiMH/NiCd battery charger solution with no microcontroller or firmware programming required The LTC4011 includes charge initiation, monitoring, protection, charge termination and constant current control circuitry for an autonomous charger solution
This article was originally published on Electronicstalk on 28 Jul 2004 at 8.00am (UK)
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The IC can fast charge 1- to 16-cell NiMH or NiCd batteries at rates up to 4A from a wide range of input supplies and wall adapter voltages from 4.5 to 34V.
A step-down constant current controller using synchronous rectification allows high current charging with high efficiency from input voltages up to 34V.
With the LTC4011's 550kHz operating frequency, the solution allows the use of small sized inductors and capacitors thus minimising printed circuit board area.
Moreover, integrated PowerPath control ensures that a system load remains powered at all times and is protected from issues associated with load transients.
Other features include battery qualification, recharge and top-off (for NiMH).
The LTC4011 also provides output signals for indicating ready, top-off, end-of-charge, and fault status conditions.
The LTC4011CFE is offered in a thermally enhanced 20-lead TSSOP package and is ideal for use in portable instruments, diagnostic and control systems as well as backup equipment.
The LTC4011 is rated for operation from 0 to +85C.
The 1000-piece quantity pricing starts at $4.60 each. Request a free brochure from Linear Technology Corp ...
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